My only idea for Your problems jared is that U haven't got original game.It is almost impossible that DD is crahshing like this when its installed from original Cd's.
My friend here in Poland has pirate copy of DD and he had also big problems.I've lend him my copy and there was everything OK.
This happens occasionally but it happens <img src="/ubbthreads/images/graemlins/wave.gif" alt="" />